>>40399797One of the earliest recorded uses of the term "cunny" appears in an October 25th, 1668, diary entry by Samuel Pepys in which he describes being caught having an affair, writing, "Endeed I was with my main [hand] in her cunny. I was at a wonderful loss upon it."[1] The term likely evolved as a pun on the word "coney," (pronounced phonetically as "cunny") an old term for a rabbit.[2]
The word has been adopted online as a funny way of referring to the vagina, with examples of it being used on forums like 4chan[3] and in image macros as early as 2010. One early joke that appears in a number of memes around that time revolves around the pun "cunny funt," a version of the phrase "funny cunt" with the first letters of each word swapped (shown below).[4]
So, she's either picked it up from Tudor England or from /here/.